The APPUSB51 is a USB 5.1 with microphone input and speaker sound card. This device will allow the creation of a microphone input and audio output connector 5.1 from any PC USB port.You will not have the need to connect behind your PC to use the audio jacks and is fully Plug & Play, no installation required!Supports 3D audio and is powered by USB without any external power.Increase the connectivity of your computer and you hear a sound like no other!